12684923 has 2 divisors, whose sum is σ = 12684924. Its totient is φ = 12684922.

The previous prime is 12684911. The next prime is 12684929. The reversal of 12684923 is 32948621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12684923 - 2⁸ = 12684667 is a prime.

It is not a weakly prime, because it can be changed into another prime (12684929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342461 + 6342462.

It is an arithmetic number, because the mean of its divisors is an integer number (6342462).

Almost surely, 2^12684923 is an apocalyptic number.

12684923 is a deficient number, since it is larger than the sum of its proper divisors (1).

12684923 is an equidigital number, since it uses as much as digits as its factorization.

12684923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 12684923 is about 3561.5899539391. The cubic root of 12684923 is about 233.2182927238.

The spelling of 12684923 in words is "twelve million, six hundred eighty-four thousand, nine hundred twenty-three".